Harster replaced our furnace and a/c, January 2012. The sales person was very pleasant and thorough in his quote and in his explanation of the products as well as follow-up with us. Harster didn't "guess" at what products we needed for our home. The sales rep. came out and measured/evaluated the products we would need carefully. Our choosing Harster was based on the product, price and the sales rep's knowledge. (We also rec'd quotes from 2 additional carriers.) On the day of the installation we had no less than 6 men working at the house and the sales person came as well. I was very impressed by the company and the professional respect they each showed while in our home. The sales rep also was very familiar with rebates that were available with the products. I absolutely would recommend this company. We felt valued as a customer and the company treated us as such.